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    • 4. 发明授权
    • Method and apparatus for processing sound
    • 声音处理方法及装置
    • US06711267B1
    • 2004-03-23
    • US09308442
    • 1999-05-19
    • Kari Kirjavainen
    • Kari Kirjavainen
    • A61F1106
    • G10K11/178A61F2011/145G10K2210/108G10K2210/3026G10K2210/3217
    • The invention relates to a method and an apparatus for sound processing, where sound is attenuated by measuring it and by producing with an actuator a sound field of opposite sign in view of the original sound field. A desired value signal (I) is supplied to the actuator which reproduces the signal. To the actuator is attached a sensor, measuring sound pressure, and the difference of the sensor signal (B) and the desired value signal (I) is applied as high gain feedback to the actuator. As a consequence, sound not pertaining to the desired value signal (I) can be attenuated in a simple manner, and sound in accordance with the desired value signal (I) can be produced simultaneously with the same apparatus.
    • 本发明涉及一种用于声音处理的方法和装置,其中通过测量声音来衰减声音,并且通过利用致动器产生与原始声场相反的声场的声场。 将期望的值信号(I)提供给再现信号的致动器。 执行器附加传感器,测量声压,传感器信号(B)和期望值信号(I)的差异作为高增益反馈应用于执行机构。 结果,可以以简单的方式衰减与期望值信号(I)不相关的声音,并且可以与相同的装置同时产生符合期望值信号(I)的声音。
    • 6. 发明授权
    • Method and apparatus for treating waste material
    • 处理废料的方法和设备
    • US06450429B1
    • 2002-09-17
    • US09463729
    • 2000-02-29
    • Kari Kirjavainen
    • Kari Kirjavainen
    • B29C4752
    • B02C18/0084B02C2/10B29C47/52
    • A method and an apparatus for treating waste material. The apparatus has a conical rotatable rotor (3) placed between stators (1, 2). At least the stators (1, 2) have recesses (9) from which the material in the apparatus can be discharged when the rotor (3) is rotating. The rotor (3) has several openings (8a, 8b) in the axial direction of the apparatus through which openings at least some of the waste material passes. The edges of the recesses (9) and the openings (8a, 8b) of the rotor (3) are sharp so that the waste material supplied to the apparatus is ground by means of the sharp edges when it passes through the openings (8a, 8b).
    • 一种处理废料的方法和装置。 该装置具有放置在定子(1,2)之间的锥形可旋转转子(3)。 至少定子(1,2)具有凹部(9),当转子(3)旋转时,装置中的材料可从该凹部(9)排出。 转子(3)在设备的轴向上具有若干个开口(8a,8b),通过该开口至少一些废料通过。 凹部(9)和转子(3)的开口(8a,8b)的边缘是锋利的,使得当通过开口(8a,8b)时,供应到设备的废料通过尖锐的边缘被研磨, 8b)。